Input: add support for Hanwang tablets
Xing Wei [Thu, 2 Sep 2010 06:25:35 +0000 (23:25 -0700)]
Add support for Art Master III tablet of BeiJing HanwangTechnology Co, Ltd.

Signed-off-by: Xing Wei <weixing@hanwang.com.cn>
Acked-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>

drivers/hid/hid-core.c
drivers/hid/hid-ids.h
drivers/input/tablet/Kconfig
drivers/input/tablet/Makefile
drivers/input/tablet/hanwang.c [new file with mode: 0644]

index e635199..baa25ad 100644 (file)
@@ -1766,6 +1766,11 @@ static bool hid_ignore(struct hid_device *hdev)
                    hdev->product <= USB_DEVICE_ID_SOUNDGRAPH_IMON_LAST)
                        return true;
                break;
+       case USB_VENDOR_ID_HANWANG:
+               if (hdev->product >= USB_DEVICE_ID_HANWANG_TABLET_FIRST &&
+                   hdev->product <= USB_DEVICE_ID_HANWANG_TABLET_LAST)
+                       return true;
+               break;
        }
 
        if (hdev->type == HID_TYPE_USBMOUSE &&
index d3fc13a..11af537 100644 (file)
 #define USB_DEVICE_ID_GYRATION_REMOTE_2 0x0003
 #define USB_DEVICE_ID_GYRATION_REMOTE_3 0x0008
 
+#define USB_VENDOR_ID_HANWANG          0x0b57
+#define USB_DEVICE_ID_HANWANG_TABLET_FIRST     0x5000
+#define USB_DEVICE_ID_HANWANG_TABLET_LAST      0x8fff
+
 #define USB_VENDOR_ID_HAPP             0x078b
 #define USB_DEVICE_ID_UGCI_DRIVING     0x0010
 #define USB_DEVICE_ID_UGCI_FLYING      0x0020
index effb49e..58a8775 100644 (file)
@@ -49,6 +49,17 @@ config TABLET_USB_GTCO
           To compile this driver as a module, choose M here: the
           module will be called gtco.
 
+config TABLET_USB_HANWANG
+       tristate "Hanwang Art Master III tablet support (USB)"
+       depends on USB_ARCH_HAS_HCD
+       select USB
+       help
+         Say Y here if you want to use the USB version of the Hanwang Art
+         Master III tablet.
+
+         To compile this driver as a module, choose M here: the
+         module will be called hanwang.
+
 config TABLET_USB_KBTAB
        tristate "KB Gear JamStudio tablet support (USB)"
        depends on USB_ARCH_HAS_HCD
index ce8b9a9..3f6c252 100644 (file)
@@ -8,5 +8,6 @@ wacom-objs      := wacom_wac.o wacom_sys.o
 obj-$(CONFIG_TABLET_USB_ACECAD)        += acecad.o
 obj-$(CONFIG_TABLET_USB_AIPTEK)        += aiptek.o
 obj-$(CONFIG_TABLET_USB_GTCO)  += gtco.o
+obj-$(CONFIG_TABLET_USB_HANWANG) += hanwang.o
 obj-$(CONFIG_TABLET_USB_KBTAB) += kbtab.o
 obj-$(CONFIG_TABLET_USB_WACOM) += wacom.o
diff --git a/drivers/input/tablet/hanwang.c b/drivers/input/tablet/hanwang.c
new file mode 100644 (file)
index 0000000..3554e30
--- /dev/null
@@ -0,0 +1,365 @@
+/*
+ *  USB Hanwang tablet support
+ *
+ *  Copyright (c) 2010 Xing Wei <weixing@hanwang.com.cn>
+ *
+ */
+
+/*
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ */
+
+#include <linux/types.h>
+#include <linux/kernel.h>
+#include <linux/slab.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/usb/input.h>
+
+#define DRIVER_AUTHOR   "Xing Wei <weixing@hanwang.com.cn>"
+#define DRIVER_DESC     "USB Hanwang tablet driver"
+#define DRIVER_LICENSE  "GPL"
+
+MODULE_AUTHOR(DRIVER_AUTHOR);
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_LICENSE(DRIVER_LICENSE);
+
+#define USB_VENDOR_ID_HANWANG          0x0b57
+#define HANWANG_TABLET_INT_CLASS       0x0003
+#define HANWANG_TABLET_INT_SUB_CLASS   0x0001
+#define HANWANG_TABLET_INT_PROTOCOL    0x0002
+
+#define ART_MASTERIII_PKGLEN_MAX       10
+
+/* match vendor and interface info  */
+#define HANWANG_TABLET_DEVICE(vend, cl, sc, pr) \
+       .match_flags = USB_DEVICE_ID_MATCH_VENDOR \
+               | USB_DEVICE_ID_MATCH_INT_INFO, \
+       .idVendor = (vend), \
+       .bInterfaceClass = (cl), \
+       .bInterfaceSubClass = (sc), \
+       .bInterfaceProtocol = (pr)
+
+struct hanwang {
+       unsigned char *data;
+       dma_addr_t data_dma;
+       struct input_dev *dev;
+       struct usb_device *usbdev;
+       struct urb *irq;
+       const struct hanwang_features *features;
+       unsigned int current_tool;
+       char name[64];
+       char phys[32];
+};
+
+struct hanwang_features {
+       unsigned short pid;
+       char *name;
+       int pkg_len;
+       int max_x;
+       int max_y;
+       int max_tilt_x;
+       int max_tilt_y;
+       int max_pressure;
+};
+
+static const struct hanwang_features features_array[] = {
+       { 0x8528, "Hanwang Art Master III 0906",
+         ART_MASTERIII_PKGLEN_MAX, 0x5757, 0x3692, 0x3f, 0x7f, 2048 },
+       { 0x8529, "Hanwang Art Master III 0604",
+         ART_MASTERIII_PKGLEN_MAX, 0x3d84, 0x2672, 0x3f, 0x7f, 2048 },
+       { 0x852a, "Hanwang Art Master III 1308",
+         ART_MASTERIII_PKGLEN_MAX, 0x7f00, 0x4f60, 0x3f, 0x7f, 2048 },
+};
+
+static const int hw_eventtypes[] = {
+       EV_KEY, EV_ABS,
+};
+
+static const int hw_absevents[] = {
+       ABS_X, ABS_Y, ABS_TILT_X, ABS_TILT_Y, ABS_WHEEL, ABS_PRESSURE,
+};
+
+static const int hw_btnevents[] = {
+       BTN_STYLUS, BTN_STYLUS2, BTN_TOOL_PEN, BTN_TOOL_RUBBER, BTN_TOOL_MOUSE,
+       BTN_0, BTN_1, BTN_2, BTN_3, BTN_4, BTN_5, BTN_6, BTN_7, BTN_8
+};
+
+static void hanwang_parse_packet(struct hanwang *hanwang)
+{
+       unsigned char *data = hanwang->data;
+       struct input_dev *input_dev = hanwang->dev;
+       struct usb_device *dev = hanwang->usbdev;
+       int i;
+
+       switch (data[0]) {
+       case 0x02:      /* data packet */
+               switch (data[1]) {
+               case 0x80:      /* tool prox out */
+                       input_report_key(input_dev, hanwang->current_tool, 0);
+                       break;
+
+               case 0xc2:      /* first time tool prox in */
+                       switch (data[3] & 0xf0) {
+                       case 0x20:
+                               hanwang->current_tool = BTN_TOOL_PEN;
+                               input_report_key(input_dev, BTN_TOOL_PEN, 1);
+                               break;
+                       case 0xa0:
+                               hanwang->current_tool = BTN_TOOL_RUBBER;
+                               input_report_key(input_dev, BTN_TOOL_RUBBER, 1);
+                               break;
+                       default:
+                               dev_dbg(&dev->dev,
+                                       "unknown tablet tool %02x ", data[0]);
+                               break;
+                       }
+                       break;
+
+               default:        /* tool data packet */
+                       input_report_abs(input_dev, ABS_X,
+                                        (data[2] << 8) | data[3]);
+                       input_report_abs(input_dev, ABS_Y,
+                                        (data[4] << 8) | data[5]);
+                       input_report_abs(input_dev, ABS_PRESSURE,
+                                        (data[6] << 3) |
+                                        ((data[7] & 0xc0) >> 5) |
+                                        (data[1] & 0x01));
+                       input_report_abs(input_dev, ABS_TILT_X, data[7] & 0x3f);
+                       input_report_abs(input_dev, ABS_TILT_Y, data[8] & 0x7f);
+                       input_report_key(input_dev, BTN_STYLUS, data[1] & 0x02);
+                       input_report_key(input_dev, BTN_STYLUS2, data[1] & 0x04);
+                       break;
+               }
+               break;
+
+       case 0x0c:
+               /* roll wheel */
+               input_report_abs(input_dev, ABS_WHEEL, data[1]);
+               input_report_key(input_dev, BTN_0, data[2]);
+               for (i = 0; i < 8; i++)
+                       input_report_key(input_dev,
+                                        BTN_1 + i, data[3] & (1 << i));
+               break;
+
+       default:
+               dev_dbg(&dev->dev, "error packet  %02x ", data[0]);
+               break;
+       }
+
+       input_sync(input_dev);
+}
+
+static void hanwang_irq(struct urb *urb)
+{
+       struct hanwang *hanwang = urb->context;
+       struct usb_device *dev = hanwang->usbdev;
+       int retval;
+
+       switch (urb->status) {
+       case 0:
+               /* success */;
+               hanwang_parse_packet(hanwang);
+               break;
+       case -ECONNRESET:
+       case -ENOENT:
+       case -ESHUTDOWN:
+               /* this urb is terminated, clean up */
+               dev_err(&dev->dev, "%s - urb shutting down with status: %d",
+                       __func__, urb->status);
+               return;
+       default:
+               dev_err(&dev->dev, "%s - nonzero urb status received: %d",
+                       __func__, urb->status);
+               break;
+       }
+
+       retval = usb_submit_urb(urb, GFP_ATOMIC);
+       if (retval)
+               dev_err(&dev->dev, "%s - usb_submit_urb failed with result %d",
+                       __func__, retval);
+}
+
+static int hanwang_open(struct input_dev *dev)
+{
+       struct hanwang *hanwang = input_get_drvdata(dev);
+
+       hanwang->irq->dev = hanwang->usbdev;
+       if (usb_submit_urb(hanwang->irq, GFP_KERNEL))
+               return -EIO;
+
+       return 0;
+}
+
+static void hanwang_close(struct input_dev *dev)
+{
+       struct hanwang *hanwang = input_get_drvdata(dev);
+
+       usb_kill_urb(hanwang->irq);
+}
+
+static bool get_features(struct usb_device *dev, struct hanwang *hanwang)
+{
+       int i;
+
+       for (i = 0; i < ARRAY_SIZE(features_array); i++) {
+               if (le16_to_cpu(dev->descriptor.idProduct) ==
+                               features_array[i].pid) {
+                       hanwang->features = &features_array[i];
+                       return true;
+               }
+       }
+
+       return false;
+}
+
+
+static int hanwang_probe(struct usb_interface *intf, const struct usb_device_id *id)
+{
+       struct usb_device *dev = interface_to_usbdev(intf);
+       struct usb_endpoint_descriptor *endpoint;
+       struct hanwang *hanwang;
+       struct input_dev *input_dev;
+       int error;
+       int i;
+
+       hanwang = kzalloc(sizeof(struct hanwang), GFP_KERNEL);
+       input_dev = input_allocate_device();
+       if (!hanwang || !input_dev) {
+               error = -ENOMEM;
+               goto fail1;
+       }
+
+       if (!get_features(dev, hanwang)) {
+               error = -ENXIO;
+               goto fail1;
+       }
+
+       hanwang->data = usb_alloc_coherent(dev, hanwang->features->pkg_len,
+                                       GFP_KERNEL, &hanwang->data_dma);
+       if (!hanwang->data) {
+               error = -ENOMEM;
+               goto fail1;
+       }
+
+       hanwang->irq = usb_alloc_urb(0, GFP_KERNEL);
+       if (!hanwang->irq) {
+               error = -ENOMEM;
+               goto fail2;
+       }
+
+       hanwang->usbdev = dev;
+       hanwang->dev = input_dev;
+
+       usb_make_path(dev, hanwang->phys, sizeof(hanwang->phys));
+       strlcat(hanwang->phys, "/input0", sizeof(hanwang->phys));
+
+       strlcpy(hanwang->name, hanwang->features->name, sizeof(hanwang->name));
+       input_dev->name = hanwang->name;
+       input_dev->phys = hanwang->phys;
+       usb_to_input_id(dev, &input_dev->id);
+       input_dev->dev.parent = &intf->dev;
+
+       input_set_drvdata(input_dev, hanwang);
+
+       input_dev->open = hanwang_open;
+       input_dev->close = hanwang_close;
+
+       for (i = 0; i < ARRAY_SIZE(hw_eventtypes); ++i)
+               __set_bit(hw_eventtypes[i], input_dev->evbit);
+
+       for (i = 0; i < ARRAY_SIZE(hw_absevents); ++i)
+               __set_bit(hw_absevents[i], input_dev->absbit);
+
+       for (i = 0; i < ARRAY_SIZE(hw_btnevents); ++i)
+               __set_bit(hw_btnevents[i], input_dev->keybit);
+
+       input_set_abs_params(input_dev, ABS_X,
+                            0, hanwang->features->max_x, 4, 0);
+       input_set_abs_params(input_dev, ABS_Y,
+                            0, hanwang->features->max_y, 4, 0);
+       input_set_abs_params(input_dev, ABS_TILT_X,
+                            0, hanwang->features->max_tilt_x, 0, 0);
+       input_set_abs_params(input_dev, ABS_TILT_Y,
+                            0, hanwang->features->max_tilt_y, 0, 0);
+       input_set_abs_params(input_dev, ABS_PRESSURE,
+                            0, hanwang->features->max_pressure, 0, 0);
+
+       endpoint = &intf->cur_altsetting->endpoint[0].desc;
+       usb_fill_int_urb(hanwang->irq, dev,
+                       usb_rcvintpipe(dev, endpoint->bEndpointAddress),
+                       hanwang->data, hanwang->features->pkg_len,
+                       hanwang_irq, hanwang, endpoint->bInterval);
+       hanwang->irq->transfer_dma = hanwang->data_dma;
+       hanwang->irq->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
+
+       error = input_register_device(hanwang->dev);
+       if (error)
+               goto fail3;
+
+       usb_set_intfdata(intf, hanwang);
+
+       return 0;
+
+ fail3:        usb_free_urb(hanwang->irq);
+ fail2:        usb_free_coherent(dev, hanwang->features->pkg_len,
+                       hanwang->data, hanwang->data_dma);
+ fail1:        input_free_device(input_dev);
+       kfree(hanwang);
+       return error;
+
+}
+
+static void hanwang_disconnect(struct usb_interface *intf)
+{
+       struct hanwang *hanwang = usb_get_intfdata(intf);
+
+       input_unregister_device(hanwang->dev);
+       usb_free_urb(hanwang->irq);
+       usb_free_coherent(interface_to_usbdev(intf),
+                       hanwang->features->pkg_len, hanwang->data,
+                       hanwang->data_dma);
+       kfree(hanwang);
+       usb_set_intfdata(intf, NULL);
+}
+
+static const struct usb_device_id hanwang_ids[] = {
+       { HANWANG_TABLET_DEVICE(USB_VENDOR_ID_HANWANG, HANWANG_TABLET_INT_CLASS,
+               HANWANG_TABLET_INT_SUB_CLASS, HANWANG_TABLET_INT_PROTOCOL) },
+       {}
+};
+
+MODULE_DEVICE_TABLE(usb, hanwang_ids);
+
+static struct usb_driver hanwang_driver = {
+       .name           = "hanwang",
+       .probe          = hanwang_probe,
+       .disconnect     = hanwang_disconnect,
+       .id_table       = hanwang_ids,
+};
+
+static int __init hanwang_init(void)
+{
+       return usb_register(&hanwang_driver);
+}
+
+static void __exit hanwang_exit(void)
+{
+       usb_deregister(&hanwang_driver);
+}
+
+module_init(hanwang_init);
+module_exit(hanwang_exit);